city vs citify

city is a noun but citify is not a noun.

Word	Noun	Adjective	Verb	Adverb
city	Yes	No	No	No
citify	No	No	Yes	No

city (noun)	citify (noun)
people living in a large densely populated municipality
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter

city (verb)	citify (verb)
	accustom to urban ways